This pr is to add the collecting hive statistic function. While the CBO fetching hive table statistics, statistic cache will first load from internal stats olap table. If not found, then using this pr's function to fetch from remote Hive metastore.
This pr is to add the collecting hive statistic function. While the CBO fetching hive table statistics, statistic cache will first load from internal stats olap table. If not found, then using this pr's function to fetch from remote Hive metastore.